Method of shaping structures with an overcoat layer including female urinary catheter
First Claim
1. A method for producing a shaped article, said method comprising:
- (a) providing a mandrel;
(b) forming a shaped structure by placing a bond-preventing agent on the mandrel;
(c) shaping the bond-preventing agent into a residual coating of bond-preventing agent comprising at least three sections, at least two of the at least three sections being a different thickness; and
(d) subsequently coating the shaped structure of the residual coating of bond-preventing agent with a polymeric bonding composition to form a shaped overcoat layer, wherein the shape of the overcoat layer results from the shape of the shaped structure of the residual coating of bond-preventing agent.
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Abstract
A method of shaping polymeric structures by coating a support structure with a bond-preventing agent to attain a particular shape and subsequently coating the shaped structure of the bond-preventing agent with a polymeric bonding composition is provided. Such shaped polymeric structures can have one or more cavities which can be fluid-filled or gel-filled. Also provided is a hand-actuating retention female urinary catheter having an inner tube and an outer overcoat layer encircling the tube with an elastomeric collar with a shroud. A cavity containing a fluid is interposed between the tube and the overcoat layer. The cavity includes a balloon portion and a reservoir portion. The shroud encircles the reservoir section to inhibit the ballooning of the reservoir section when the reservoir section is squeezed to force fluid from the reservoir portion to the balloon portion through the sleeve portion of the cavity. The overcoat layer and the collar with a shroud are made of soft resilient material.
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Citations
10 Claims
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1. A method for producing a shaped article, said method comprising:
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(a) providing a mandrel;
(b) forming a shaped structure by placing a bond-preventing agent on the mandrel;
(c) shaping the bond-preventing agent into a residual coating of bond-preventing agent comprising at least three sections, at least two of the at least three sections being a different thickness; and
(d) subsequently coating the shaped structure of the residual coating of bond-preventing agent with a polymeric bonding composition to form a shaped overcoat layer, wherein the shape of the overcoat layer results from the shape of the shaped structure of the residual coating of bond-preventing agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification